Color Spectrum Chartand The Visible Spectrum

(See the Sea
Glass Color Chart for visible color display spectrum as it
relates to sea glass colors on the computer screen)

The visible spectrum is the portion of the electromagnetic spectrum
that can be detected by the human eye.

Electromagnetic radiation in this range of wavelengths is called
visible light or simply light.

The spectrum doesn't,
however, contain all the colors that the human eyes and brain can tell
apart.

Colors
such as pink, and purple colors such as magenta aren't found as such in
the color spectrum, for example, because they can only be made by a mix
of multiple wavelengths.

The eyes of many species
perceive wavelengths different from the spectrum visible to the human
eye.

For example, many insects,
such as bees, can see light in the ultraviolet, which is useful for
finding nectar in flowers.

For
this reason, plant species whose life cycles are linked to insect
pollination may owe their reproductive success to their appearance in
ultraviolet light, rather than how colorful they appear to our eyes.

Birds
too are able to see into the ultraviolet and the sex-dependent markings
on some bird plumage is only visible in the ultraviolet range.

Color Spectrum Chart

Color spectrum of the complete RGB color wheel generated in a display device.

The Color Display Spectrum

Color displays (e.g., computer
monitors or televisions)
mix red, green, and blue color to create colors within their respective
color triangles, and so can only approximately represent spectral
colors, which are in general outside any color triangle.

This is important when viewing sea
glass colors on the television screen or, for that matter,
any colored depiction on color display screens.

In simple terms, there are limits to the colors
that a computer screen can display.

It may be that two different colors with two different name look the
same on your computer screen.

Or,
if you use a different browser (for example, first looking at a color
on Windows Internet Explorer and then the same color on Firefox
browser) the color may look slightly different.

This is because displays are limited and it would be impossible to
represent on a color spectrum chart (on a display screen) that the
human eye can distiguish.

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